1980 seismic survey, Woolkanie, final report.
Created: 13 Nov 2024 Revised: 13 Nov 2024

AIM:The 1980 Woolkanie Seismic Survey was primarily aimed at detailed gridding over areas of known commercial hydrocarbon accumulation, and more specifically was directed toward locating drilling exploration/appraisal sites on or near existing...

AIM:The 1980 Woolkanie Seismic Survey was primarily aimed at detailed gridding over areas of known commercial hydrocarbon accumulation, and more specifically was directed toward locating drilling exploration/appraisal sites on or near existing fields, plus pinpointing Jurassic structural apices. Several important discoveries of oil and gas have recently been made within the Mesozoic 'cover' sequence in artesian sandstone units of the Eromanga Basin, during otherwise strict process of investigating Cooper Basin targets. This has prompted a shift of emphasis away from former solely Permian objectives towards these new Cretaceous, Triassic and predominantly Jurassic structural plays.METHODS: Survey dates: 24/4/80 - 2/9/80. Energy source: Vibroseis. CDP coverage: 1200%. Recording mode: 48 channel digital - Sercel SN338B/SN338HR recorders. SP/VP interval: 150.0 metres, group interval: 75.0 metres.143 new lines totalling 1304 line km of 12-fold reflection seismic data were concurrently acquired by two crews in the Strzelecki, McKinlay, Burke-Dullingari, Strathmore, Della, Tirrawarra, Moorari, Fly Lake-Brolga and Kudrieke-Toonman areas.RESULTS:The current mapping of Strzelecki Field has provided a basis for the determination of Jurassic oil reserves, besides locating a site for Permian gas appraisal drilling south of the Strzelecki 3 well. The Strathmore Prospect lying astride the SA/Qld border is interpreted to possess hydrocarbon potential in both States. Potential exists at both Mesozoic and Permian levels. Overall mapping of the Della Field structure has been enhanced but intra-Permian reflections are still difficult to pick. The seismic over Tirrawarra Field was interrupted by heavy winter rains and flooding in the area, resulting in the development of large misties between data of intersecting lines. Several other promising prospects and leads within the Patchawarra Central Block area were addressed by the Woolkanie Survey. Those with demonstrated Permian structural trap potential for wet gas and oil are the Mitchie, Kudrieke, Andree, Woolkina and Brolga Prospects and the Mingana, Toonman, Quartpot and Yaringa strong leads. Provisional test well locations are proposed for Toonman and Yaringa.

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About this record

Record No mesac34073
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Geophysical Report - Final
Contributor Delhi Petroleum Pty Ltd;Santos Ltd;Seismograph Service Ltd;Western Geophysical Company
Sponsor Delhi Petroleum Pty Ltd
Tenement
Tenement Holder Delhi Petroleum Pty Ltd;Santos Ltd;Vamgas Ltd;South Australian Oil and Gas Corp. Pty Ltd;Crusader Resources NL;Bridge Oil Ltd;Reef Oil NL;Basin Oil NL
Operator Delhi Petroleum Pty Ltd
Geological Province
Mine Name Strzelecki Oil Field;Strzelecki Gas Field;McKinlay Prospect;Burke Gas Field;Dullingari Oil Field;Dullingari Gas Field;Dullingari North Gas Field;Coochilara Prospect;Strathmore (syn.Strathmount) Prospect;Della Gas Field;Tirrawarra Oil and Gas Field;Moorari Oil and Gas Field;Fly Lake Oil and Gas Field
Stratigraphy
Commodity
    Notes
    Notes: Includes Seismograph Service Ltd (crews 116 and 122) field operations report and Western Geophysical Company, Singapore, data processing report, plus survey permanent mark listings, as appendices to the final report. Besides providing a...

    Notes: Includes Seismograph Service Ltd (crews 116 and 122) field operations report and Western Geophysical Company, Singapore, data processing report, plus survey permanent mark listings, as appendices to the final report. Besides providing a summary of seismic horizon picking mechanics, a brief outline is given of the operator's 'Delta-Z' time-depth conversion method as used in the interpretation mapping of the survey data. Plans include interpreted major seismic reflecting horizon depth structure and isopach maps for the nine prospect areas surveyed. Santos interpretaion over Fly Lake-Brolga,Tirrawarra and Della Fields stored in Env 04502, 03912, and 03906 Geographic Locality: 1980 Woolkanie Seismic Survey;Moomba Block: Patchawarra Central;Nappacoongee-Murteree;Toolachee Doc No: Env 04287 Drillhole: Strzelecki 4;Strzelecki 3;Burke 1;Dullingari 1;Coochilara 1;Dullingari North 1;Della 1;Della 5;Della 8;Tirrawarra 1;Tirrawarra 8;Tirrawarra 12;Moorari 1;Moorari 2

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    Language English
    Metadata Standard ISO 19115-3

    Citations

    Use constraints License
    License Creative Commons Attribution 4.0
    Persistent identifier https://pid.sarig.sa.gov.au/document/mesac34073
    Citation Middleton, M.P.;Kalisewski, A.B.;Beahan, P.L.;Rasidi, J.;Norris, D. 1980 seismic survey, Woolkanie, final report. Geophysical Report - Final
    https://pid.sarig.sa.gov.au/document/mesac34073

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[139.5,-28.5],[141,-28.5],[141,-27],[139.5,-27],[139.5,-28.5]]]}
    Purpose
    
                        
                        
    
                        
                      
    Lineage